Strategic Technology Transactions, Goodwill and Other Purchased Intangible Assets - Allocation of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 28, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	$ 33,138
Complete technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	21,399
Estimated Average Remaining Useful Life	8 years
Customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	7,475
Estimated Average Remaining Useful Life	8 years
Covenants not-to-compete [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	325
Estimated Average Remaining Useful Life	3 years
Original Values [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	25,365
Original Values [Member] | Complete technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	16,827
Original Values [Member] | Customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	3,631
Original Values [Member] | Covenants not-to-compete [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets
Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	3,939
Estimated Average Remaining Useful Life	Indefinite
Trade name [Member] | Original Values [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value of intangible assets	$ 4,907